<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>Document</title>
	<script type="text/javascript">
	// res = confirm("你确定要删除吗？");
	// alert(res);
	name = "hello 'world'!!!";
	// alert(name);
	// 
	num = '13';  //字符串13
	num1 = Number(num);  //把函数对象的值转为数字
	alert(num1);
	res = typeof(num1);   //检测是不是数字
	alert(res);	//弹出



	</script>
</head>
<body>
	<p>1111111</p>
</body>
</html>